Add 70/90 and 8/81
70/90 + 8/81 is 71/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 90 × 9 = 810,
70/90 = 70 × 9/90 × 9 = 630/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
8/81 = 8 × 10/81 × 10 = 80/810 - Add the two like fractions:
630/810 + 80/810 = 630 + 80/810 = 710/810 - 710/810 simplified gives 71/81
- So, 70/90 + 8/81 = 71/81
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